Answers when you need them<br /> <br /> When you need to check specs, confirm measurements, or make a quick metric conversion on the job, find the answers quickly and easily–right in your pocket.<br /> <br /> Your one-stop reference for<br /> * Conversion tables, electrical formulas, pipe thread standards, and motor ampere ratings<br /> * Fuel cost comparisons<br /> * Offset calculations and valve details<br /> * Gas and oil burner specifications<br /> * Pipe performance data<br /> * Weather and design factors affecting heating/cooling calculations<br /> * Troubleshooting guidelines

